robustella Hendel, 1936
Hendel, 1936. Fliegen pal. Reg. 6(2): 567. [Preoccupied
by Napomyza (Phytomyza) robusta Meunier, 1905]. Phytomyza
robustella Hendel, 1936. Fliegen palaearkt. Reg. 6(2):
Phytomyza robustella Hendel, 1936; Griffiths, 1964. Entomologiske
Meddeleser XXXII: 393-4
Phytomyza robustella Hendel, 1936; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 259, 267
Phytomyza robustella Hendel, 1936; Henshaw, 2002. Dipterists
Digest 9(2): 160.
larvae tunnel in the mid-rib of the basal leaves. Their presence
causes the vein to swell. Pupation within the mine (Bladmineerders van Europa).
Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.
Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).
Species in the robustella group all feed in the petiole,
sometimes causing a gall-like swelling (Spencer,
Hosts in Great Britain & Ireland: Currently unknown.
of year - mines:
April-May and June-July (Hering,
of year - adults: Currently unknown.
in Great Britain & Ireland: Added to the British checklist
by Henshaw (2002).
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Distribution elsewhere: Widespread in continental Europe including Germany (von
Tschirnhaus, 1999), Austria, Czech Republic, Estonia, French
mainland, Hungary and Italian mainland (Martinez in Fauna Europaea).
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British and Irish Parasitoids in Britain and elsewhere: